Arrays & Repeated Addition

Front

What is an array in mathematics?

Back

An array is a systematic arrangement of objects, usually in rows and columns, that helps visualize multiplication and repeated addition.

Tags

CCSS.4.NBT.B.5

Front

How can repeated addition be represented using an array?

Back

Repeated addition can be represented by counting the total number of objects in each row of an array and multiplying by the number of rows.

Tags

CCSS.2.OA.C.4

Front

What is the relationship between arrays and multiplication?

Back

Arrays can be used to visualize multiplication as the total number of items in an array is equal to the number of rows multiplied by the number of items in each row.

Tags

CCSS.4.NBT.B.5

Front

What is the repeated addition sentence for an array with 4 rows of 3?

Back

The repeated addition sentence is 3 + 3 + 3 + 3 = 12.

Tags

CCSS.2.OA.C.4

Front

How do you express 3 + 3 + 3 + 3 in terms of multiplication?

Back

It can be expressed as 4 groups of 3, or 4 x 3.

Tags

CCSS.3.OA.A.1

Front

What does the term 'groups' refer to in repeated addition?

Back

'Groups' refer to the number of times a certain number is added together in repeated addition.

Tags

CCSS.2.OA.C.4

Front

If you have 5 groups of 2, what is the repeated addition sentence?

Back

The repeated addition sentence is 2 + 2 + 2 + 2 + 2.

Tags

CCSS.2.OA.C.4

Front

How can you find the total of an array with 6 rows of 2?

Back

You can find the total by calculating 2 + 2 + 2 + 2 + 2 + 2 or by multiplying 6 x 2.

Tags

CCSS.3.OA.A.1

Front

What is the equation that matches the array of 4 rows of 4?

Back

The equation is 4 + 4 + 4 + 4 = 16.

Tags

CCSS.2.OA.C.4

Front

What is another way to express 2 + 2 + 2 + 2?

Back

It can be expressed as 4 groups of 2.

Tags

CCSS.3.OA.A.1